| 词条 | DIN rail |
| 释义 |
| align = right | direction = vertical | width = 200 | image1 = Din rail.jpg | caption1 = A front view of a populated 35 mm DIN rail | image2 = DIN rail rear view.JPG | caption2 = Rear view. Note the release loops at the top of the mounted devices which unclip them. }} A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish. Although metallic, they are meant only for mechanical support, and are not used as a busbar to conduct electric current, although they may provide a chassis grounding connection. The term derives from the original specifications published by Deutsches Institut für Normung (DIN) in Germany, which have since been adopted as European (EN) and international (IEC) standards.[1] The original concept was developed and implemented in Germany in 1928, and was elaborated into the present standards in the 1950s.[2] TypesThere are three major types of DIN rail:[3]
Top hat rail IEC/EN 60715This 35-mm wide rail is widely used to mount circuit breakers, relays, programmable logic controllers, motor controllers, and other electrical equipment. The EN 50022 standard specifies both a 7.5 mm (shown above) and a 15 mm deep version, which are officially designated
Some manufacturers catalogues also use the terms Top hat section / Type O / Type Omega (Ω).{{citation needed|date=January 2012}} It is known as the TS35 rail in the USA. C sectionThese rails are symmetrical within the tolerances given. There are four popular C section rails, C20, C30, C40 and C50. The number suffix corresponds to the overall vertical height of the rail. G sectionG-type rail (according to EN 50035, BS 5825, DIN 46277-1). G rail is generally used to hold heavier, higher-power components. It is mounted with the deeper side at the bottom, and equipment is hooked over the lip, then rotated until it clips into the shallower side. OthersIn addition to the popular 35 mm × 7.5 mm top-hat rail (EN 50022, BS 5584, DIN 46277-3), several less widely used types of mounting rails have also been standardized:
Related equipment
See also
References1. ^{{cite book|last1=Simpson|first1=Robert|title=Lighting Control: Technology and Applications|date=2003|publisher=Focal Press/Elsevier|location=Oxford UK|isbn=0-240-51566-8}} {{Commons category|DIN rail}}{{Deutsches Institut für Normung}}2. ^{{cite web|url=http://sites.ieee.org/npec-sc2/files/2017/06/SC-2Mgt08-2_Att9-WP_DIN-Rail.pdf|title=DIN-Rail in the Electrical Control Cabinet and Junction Box|author=Arnold Offner|website=IEEE Power and Engineering Society|author2=Phoenix Contact|date=November 12, 2008|accessdate=May 31, 2018}} 3. ^{{cite book|last1=Tickoo|first1=Sham|title=AutoCAD Electrical 2010 for Engineers|date=2010|publisher=Dorling Kindersley|location=India|isbn=978-81-317-3213-7|pages=8–46}} 3 : EN standards|Mechanical standards|Deutsches Institut für Normung |
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